What is The Leaf Mark On the Side Of Power Stop Brake Pad Box?

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The Copper Content Leaf Mark


Have you seen the leaf mark on the side of Power Stop brake pad box?
This symbol specifies the level of copper content in the friction material.

Since 2010, California and Washington require this mark to sell products or material found harmful to fish or wildlife.

Harmful Materials include Copper, Nickel, Zinc, Asbestiform Fibers, Cadmium, Chromium, Mercury, and Lead.
These materials are regulated by a 3rd party, NSF International.

There are 3 levels, level N, level B, and Level A.  These levels describe the acceptance of the materials within brake pads approve by NSF.

Level A restrictions:
-Asbestiform fibers, less than 0.1% by weight
-Cadmium and its compounds, less than 0.01% by weight
-Chromium (VI)- Salt, less than 0.1% by weight
-Lead and its compounds, less than 0.1% by weight
-Mercury and its compounds, less than 0.1% by weight

Level B restrictions:
-Contains between 0.5% and 5% of copper by weight
-Asbestiform fibers, less than 0.1% by weight
-Cadmium and its compounds, less than 0.01% by weight
-Chromium (VI)- Salt, less than 0.1% by weight
-Lead and its compounds, less than 0.1% by weight
-Mercury and its compounds, less than 0.1% by weight

Level N restrictions:
-Contains between 0.5%
-Asbestiform fibers, less than 0.1% by weight
-Cadmium and its compounds, less than 0.01% by weight
-Chromium (VI)- Salt, less than 0.1% by weight
-Lead and its compounds, less than 0.1% by weight
-Mercury and its compounds, less than 0.1% by weight

Power Stop displays the leaf mark symbol on the side of brake pad box to guarantee the product you are buying will comply with law.

Don’t Just Stop… Power Stop!
Check Out Power Stop Brake Pads and Brake Kits: https://www.powerstop.com/products/#